Enter your code at this point (when the 4 dashes are shown), then press the smart symbol button to confirm the code. The radio should be activated. Example - if your code is 4321 you would get the 4 dashes to show and then press the "1" button x4 four times, the "2" button x3 three times, the "3" button x2 twice times and the "4
1 Answer The reset code for a smart car radio Posted by Lois Fowleron Aug 09, 2017 Want Answer1 Clicking this will make more experts see the question and we will remind you when it gets answered. Comment Flag MoreThis is a short video explaining how to unlock the smart cars radio when it is in locked safe mode. the code I found in the manual did not work so I will be going to the local Mercedes
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